Well my thoughts on fitting a fan assisted cooler on the chassis looks like a no go, haven't got the room. Now looking at a heat sink type chassis rail mount which is what Swamp was looking into. Also the fitting of a bigger finned sump would aid cooling, but easily allow oil changes, as they have magnetic sump plugs.

I have given up on the heat sink heat exchanger as well, ditto no room. Decided I will do nothing, just drive as I did before (slowly) and do oil changes more frequently. I feel fitting a cooler at the front of the vehicle without a bull bar is just too much risk. If I fit a bull bar, it will just add more weight.